From the perspective of semantic carrier of language，the generation rules of product form and semantic are excavated from the language syntax and semantic formation rules. It divides the research content of semantics into two categories of narrow sense and the general semantics， and the language syntax and semantics are analyzed respectively from narrow sense and general aspects and got inspired，establishes product form grammar model and product form users semantic model as a reference model of product design. Form grammar model of product and product form users semantic model is set up in order to better understand the semantics， the semantics of thinking from the micro and macro aspects used in product design， so the use of semantics can be more rapid and effective.